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Taxation (Tables) | 12 Months Ended
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Dec. 31, 2022
Income Tax Disclosure [Abstract] |
Schedule of loss before income taxes |
|  | Years ended December 31, |
(In thousands) |  | 2020 |  |  | 2021 |  |  | 2022 |
Non-PRC |  |  | (54,627 | ) |  |  | (28,212 | ) |  |  | (15,397 | )
PRC |  |  | (8,603 | ) |  |  | (17,872 | ) |  |  | (4,367 | )
Total |  |  | (63,230 | ) |  |  | (46,084 | ) |  |  | (19,764 | )
Schedule of reconciliations of the income tax expenses |
|  | Years ended December 31, |
(In thousands) |  | 2020 |  |  | 2021 |  |  | 2022 |
Loss before income tax |  |  | (63,230 | ) |  |  | (46,084 | ) |  |  | (19,764 | )
Income tax computed at statutory PRC income tax rate (25%)(i) |  |  | (15,808 | ) |  |  | (11,521 | ) |  |  | (4,941 | )
Differential income tax rates applicable to certain entities comprising the Group |  |  | 13,121 |  |  |  | 4,061 |  |  |  | 1,791 |
Effect of tax holiday |  |  | 824 |  |  |  | 1,786 |  |  |  | 469 |
Permanent differences(ii) |  |  | 451 |  |  |  | 1,826 |  |  |  | 2,100 |
Change in valuation allowance |  |  | 2,735 |  |  |  | 5,405 |  |  |  | 1,569 |
Accelerated deductions on research and development expenses(iii) |  |  | (1,138 | ) |  |  | (1,313 | ) |  |  | (827 | )
Income tax expenses |  |  | 185 |  |  |  | 244 |  |  |  | 161 |
(i) | The PRC statutory income tax rate was used because the majority of the Group’s operations are based in the PRC.
(ii) | Permanent differences primarily represent non-deductible expenses.
(iii) | This amount represents tax incentives relating to the research and development expenses of certain major operating subsidiaries in the PRC.
Schedule of per share effect of the tax holiday |
|  | Years ended December 31, |
(In thousands) |  | 2020 |  |  | 2021 |  |  | 2022 |
Effect of tax holiday |  |  | 824 |  |  |  | 1,786 |  |  |  | 469 |
Per share effect – basic and diluted |  |  | (0.00 | ) |  |  | (0.01 | ) |  |  | (0.00 | )
Schedule of components of deferred tax assets |
|  | Years ended December 31, |
(In thousands) |  | 2020 |  |  | 2021 |  |  | 2022 |
Deferred tax assets |  |  |  |  |  |  |  |  |
Net operating loss carryforwards |  |  | 9,416 |  |  |  | 14,808 |  |  |  | 19,814 |
Accrued expenses and others |  |  | 414 |  |  |  | 427 |  |  |  | (3,010 | )
Less: valuation allowance |  |  | (9,830 | ) |  |  | (15,235 | ) |  |  | (16,804 | )
Net deferred tax assets |  |  | — |  |  |  | — |  |  |  | — |
Schedule of movement of valuation allowance |
|  | Years ended December 31, |
(In thousands) |  | 2020 |  |  | 2021 |  |  | 2022 |
Balance at beginning of the year |  |  | 7,095 |  |  |  | 9,830 |  |  |  | 15,235 |
Change of valuation allowance |  |  | 2,735 |  |  |  | 5,405 |  |  |  | 1,569 |
Balance at end of the year |  |  | 9,830 |  |  |  | 15,235 |  |  |  | 16,804 |

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